use plotkit::prelude::*;
fn main() -> plotkit::Result<()> {
let mut fig = Figure::with_size(800, 600);
let ax = fig.add_subplot(1, 1, 1);
let x: Vec<f64> = (0..8).map(|i| i as f64).collect();
let y: Vec<f64> = x.iter().map(|&v| 2.0 * v + 1.0).collect();
let yerr: Vec<f64> = x.iter().map(|&v| 0.5 + 0.2 * v).collect();
let eb = ax.errorbar(x.clone(), y.clone())?.yerr_symmetric(&yerr);
let mut eb = eb;
eb.cap_size(5.0)
.line_width(1.5)
.color(Color::TAB_RED)
.label("Measurements");
ax.add_errorbar(eb);
ax.set_title("Error Bar Demo");
ax.set_xlabel("x");
ax.set_ylabel("y");
ax.legend();
ax.grid(true);
fig.save("examples/output/39_errorbar_demo.png")?;
Ok(())
}